Welcome to Demon School! Iruma-kun — Characters & Cast

Initially to survive without drawing attention; evolves into a desire to protect his new home and friends.

Begins as an anxious, selfless push-over whose survival instinct made him hyper-evasive. Over four seasons, he develops authentic self-worth, masters magical archery under Barbatos Bachiko, and steps up as a leader worthy of the Demon King’s title.

To serve as Iruma’s right hand and elevate him to the pinnacle of the demon world.

Starts as an arrogant, aristocratic fire-magic prodigy who loses to Iruma on day one. He vows absolute loyalty to Iruma, learning humility, emotional openness, and how to harness his mother’s bloodline magic (seduction) alongside his flames.

To play continuously with Iruma and Azz and keep them happy.

An eccentric, hyperactive girl who used to bribe others with her pocket-creation magic just to have playmates. Finding genuine friendship with Iruma and Azz, she matures emotionally while expanding her power into advanced pocket dimensions.

To maintain order at Babyls while exploring her romantic feelings and personal desires.

The formidable Student Council President. She suspects Iruma is human due to his ability to read her family's sacred human shojo manga. As she relies on him to translate the stories, she develops romantic feelings, balancing her strict responsibilities with newfound personal warmth.

To uphold Babyls' reputation and ensure his students survive and thrive.

The strict homeroom teacher of the Misfit Class who values discipline above all. Bound to Iruma as a familiar (in the form of a fluffy, harmless bird) due to a ritual accident, Kalego maintains a harsh exterior while secretly driving his students toward growth.